微波烧结WC-Co细晶硬质合金的工艺与性能

来源期刊：中国有色金属学报1999年第3期

论文作者：周健 程吉平 袁润章 章韵瑾 邱进宇

文章页码：465 - 468

关键词：微波烧结； 钴钨硬质合金； 工艺； 性能

Key words：microwave sintering；WC-Co cemented carbide；technology；properties

摘    要：采用微波烧结新技术研究了WC-Co细晶硬质合金的烧结工艺与性能，并同常规烧结工艺进行了比较。结果表明：微波烧结WC-Co细晶硬质合金在1300℃的烧结温度下保温10 min时， 可达到99.8%的相对密度； 烧结温度降低，烧结时间大幅度缩短，且制品的显微晶粒尺寸只有常规烧结的一半；抗弯强度、矫顽磁力、硬度有较大幅度提高。

Abstract: Using the microwave sintering new technology, the technology and property of WC-Co fine grain cemented carbide in microwave sintering was studied and compared with conventional sintering technology. The results show that microwave sintered WC-Co fine grain cemented carbide can reach 99.8% relative density in 1300℃ sintering temperature and 10 min preservation. The microwave sintering not only can reduce sintering temperature and shorten sintering time in large range, but also can decrease micro-grain size of products over less one-half and increase bending strength, coercive force and hardness in large range compared with conventional sintering .